System of storing and delivering liquid fuel.



I PATENTED DEC. 5, 1905.

G. J. CAMPBELL & T. F. HALL. SYSTEM OF STORING AND DELIVERING LIQUID FUEL.

APPLICATION FILED $33.29. 1906.

EZin 17 I UNITED s'rn'rns PATENT OFFICE.

CLIFFORD J. CAMPBELL AND THOMAS F. HALL, OF NEW YORK, N.

SYSTEM OF STORING AND Specification of No. 806,634. I

Application filed April 29,

To all whom it may concern:

Be it known that we, CLIFFORD J. GAMB- BELL and THoMAs F. HALL, citizens of the United States, and residents of the city of New York, borough of Brooklyn, in the county of Kings and State of New. York, have invented acertain new and useful Improvement in Systemsof Storing and Delivering Liquid Fuel;

.of which the following. is a specification.

1 prevent the escape of gasolene or other hydrocarbon from the tank and piping to the explosive mixtures of gas or hydrocarbon vapor liable to accidental ignition. 5

. its connections.

- Another object is to provide means for permitting a moderate accumulation of such water in the gasolene side of the system and for trapping the same; and a further object is to provide an alarm which shall automatically indicate such, leakage. The invention consists in certain novel features and arrangements of parts by which the: above objects are attained,'to be hereinafter. described.

- The accompanying drawings form a part of this specification and show the general arrangement of the system and preferred forms of details, w

Figure 1 is a side elevationof the tank and The dotted lines show so much of a motor as is necessary in describing the operation.

a larger scale, through a portion of the top of view, partly in horizontal section.

thetank; and Fig. 3 .is a corresponding plan Fig. 4: is

- averticalsection, partly in elevation, showing a portion of the leakage-trap. Fig. 5 is a section,-partly in elevation, on a still larger scale, showing a mechanism for actuating the alarm.

Fig. 2 is a vertical section, on

DELIVERING LIQUID FUEL.

Letters Patent.

1905- Serial No. 258,005.

Patented. Dec. 5, 1905.

contain gasolene, a pipe A,,leading therefrom to a motor or other point of delivery, a casing B,inclosing the tank, with a space between, and a pipe or jacket B, similarly inclosing the delivery-pipe A, with means for introducing liquid, as water, under a pressure in excess of whereby any leaks in thetank or deliverypipe will admit water thereto instead of per mitting gasolene to escape therefrom, and in thefmost complete development of the'invention a trap O, havinga casingO, is included at a low point in the system, in which the water thus admitted may accumulate without af- -D, actuated by the reduction of pressure in water.

The tank A has a neckA projecting above the topofthe casing B and is screw-threaded to recelve a closing-cap A in which is an opening receiving the stem E of a float E, held in position by a head E portion of the stem is grooved, as at e, to admit air to the interior of the tank, and thus prevent the formation of ,a partial vacuum and permit the gasolene to flow. freely from theta'nk. I v

The delivery-pipe A from the bottom of the tank and the jacket B therefor from the bottom' of the casing are preferably at a slightly-downward inclination, and at a low point the pipe A enters the upper part of a receptacle or trap C, inclosed in a casing C, to which the jacket'B"'is joined. The delivery-pipe A is continued from the top of the trap to the motor or other point of dellive'ry, and the inclosing jacket B is similarly continued from the top of the casingO. A draw-off cock C is provided near the bottom of the trap O, inclosed ina removable bonnet C formingpartof the casing C, whic h is also provided with a tap (3*, through which Water in the casings and jacket may be drained.

C is connected a water-supply pipe D, through which water is received from a pump, standpipe, or other means of inducing a pressure in excess of that in the gasolene-tank and its delivery-pipe and which may be the circulation-pump for the Water-jacket of the motor sure. In the water-supply pipe D isavalve D located between branches DD, leading to opposite faces of a piston D -in acylinder D. The piston has a stem D7, extending that in the tank to such casing and jacket,

fectingthe flow of gasolene, and also an alarm or other convenient source of'moder'ate presthe casings and jacket due to leakage of the p The upper At anyconvenient point in the trap-casing through a stuffing-box and carrying a head D adapted by its movement in one direction to complete an electric circuit and ring an alarmbell D.

From the top of the tank-casing B extends a relief-pipe F, controlled by a valve F and serving to permit the casings and jacket to be filled with water through the pipe D.

The operation of the system is as follows: The relief-valve F is opened and also the supply-valve D and water is admitted to the spaces between the casings and jacket and their inclosed tank, pipes, and trap until such spaces are completely filled, as will be indicated by the flow from the pipe F. The relief-valve is then closed and also the supplyvalve D The piston D then liesv between the ports d d with its head D out of contact with the wires D Thus conditioned any leak in the tank A, pipe A, or trap C does not permit gasolene to escape, but will simply admit water to the interior of these portions, where it mingles with the gasolene therein; but by reason of the difference in gravity the water immediately seeks the lowest point in the systemthe trapand accumulates therein. This escape of water reduces the volume imprisoned in the jacket and casings, causing the piston D to follow by reason of the pressure on its opposite face, due to the pump or other head or atmospheric pressure alone, and brings the head D into contact with the wires D, rings the alarm, and thus calls attention to the leak. The motor will continue to run under these conditions until the trap Cis nearly filled with water, and if it be inconvenient to attend to the leak at the time the casings and jacket may be drained through the tap C, the bonnet O removed, and the water drawn from the trap C through the cock C and these parts being again replaced and a new'supply of water introduced, as before, the motor may continue to run until the trap is again flooded, thus permitting the boat or other vehicle to run until a convenient place is reached at which to make repairs. The tap C also serves usefully in draining the system to prevent damage by freezing. The float E serves, as before stated, to allow the entrance of air as required and also to close the vent and avoid the escape of gasolene when the level of the gasolene rises too high, due to motions of the vessel in which the system may be installed or other causes.

Instead of depending on gravity for the flow of gasolene to the delivery-point the tank may be closed and the gasolene delivered by the pressure of air forced into the tank. In such case the water-pressure in the casings must be correspondingly raised to be slightly in excess.

' The system prevents the unnoticed leakage of gasolene and the danger of the accumulation of gas or vapor therefrom mixed with air in explosive proportions in confined spaces.

Leaks are' immediately indicated; but unless they be large the motor may be safely run until opportunity is offered for repairs.

Modifications may be made in the forms and proportions as found necessary or desirable in installing the system under various conditions, and parts may be used without the whole. The alarm mechanism may be omitted or other forms substituted for the electric bell shown. The water-supply may be from any source and the pressure obtained by any suitable means. Instead of gasolene alcohol or any of the usual hydrocarbons may be used as fuel, and other liquids may be used instead of water to maintain the desired excess pressure around the tank and its connections.

We claim 1. In an apparatus of the character described, a tank, a casing inelosing said tank, with a space between them, a delivery-pipe from said tank, a pipe inelosing said deliverypipe and connected to said casing, and means for supplying to such space and inelosing pipe liquid under pressure in excess of the pressure in said tank and delivery-pipe.

2. The system of storing and delivering liquid fuel described, the same consisting of a tank adapted to contain such fuel, a deliverypipe therefrom, a trap in said pipe, a casing inelosing said tank and pipe and trap with a space between them, and means for supplying a liquid of greater specific gravity than such fuel to said space at a pressure greater than that in said tank, pipe and trap, whereby such heavier liquid admitted by leaks to said tank, pipe or trap will accumulate in the latter below the liquid fuel therein.

3. The system of storing and delivering liquid fuel described, the same consisting of a tank adapted to contain such fuel, a deliverypipe therefrom, a trap in said pipe, a casing inelosing said tank, pipe, and trap with a space between them, and means for supplying a liquid of greater specific gravity than such fuel to said space at a pressure greater than that in said tank, pipe, and trap, whereby such heavier liquid admitted by leaks to said tank, pipe or trap will accumulate in the latter below the liquid fuel therein, and an alarm actuated by the lowering of the pressure in such space due to such leaks.

4:. The system of storing and delivering liquid fuel described, the same consisting of a tank adapted to contain gasolene or analogous liquid fuel, a delivery-pipe therefrom, a casing inelosing said tank and pipe with a space between them, a pipe adapted to supply water under pressure to such space, a valve in said water-pipe, a cylinder, a piston therein, a branch from said water-pipe on each side of said valve and entering said cylinder on opposite faces of said piston, and an alarm actuated by the movement of said piston, whereby a change in pressure in said water-pipe on opposite sides of said valve when the latter is closed, will move said piston and indicate uid fuel described, the same consisting'of a tank adapted to contain gasolene or analogous liquid fuel, adeliveryrpipe therefrom, a trap at a low point in said pipe, a casing iuclosing said tank, pipe, and trap with a space between them, means for supplying water or other liquid of greater specific gravity than said fuel to said space at -a' pressure greater than that in said tank, pipe, and trap, a draw-off tap forsaid trap, and a drain-cock for said casing.

6. The system-of storing and delivering liquid fuel described, the same consisting of a tank adapted to contain gasolene or analogous liquid fuel, a delivery-pipe therefrom, a trap at a low point-in said pipe, a casing inclosing said tank, .pipe, and trap with a space between them, means for supplying water 'orother liquid of greater specific gravity than said fuel to said space at a pressure greater than that in said tank, pipe, and trap, a draw-off tap in said trap and Within said casing, and a removable bonnet on the latter for permitting "access to said tap.

7. The system of storing and delivering liq-I uid fuel described, the same consisting of-a tank adapted to containgasolene or analogous liquid fuel; a delivery-pipe therefrom, a trap at a low point in said pipe, a casing inclosing said tank, pipe, and trap with a space between them, means for supplying water or other liquid of greater specific gravity than said fuel to said space at a pressure greater than that in said tank, pipe, and trap, a draw-off tap in-said trap and within said casing, a removable bonnet on the latter for permitting access to said tap, and a drain-cock for said space.

uid fuel described, comprisinga tank adapted to contain gasolene or analogous liquid fuel, a delivery-pipe therefrom, a casing inclosing said tank and pipewith a space between them,-

means for supplying water or other liquid of greater specific gravity than said fuel to said space at a pressure in excess of that in said tank and pipe, whereby leaks in said tank and pipe will admit such waterthereto, an airvent in the top ofsaid tank, and a float-valve controlling said vent-and arrangedto permit air to flow freely therethrough to ,and from 7 said tank and to prevent the escape of liquid fuel through said vent.

In testimony that we claimthe invention above set forth we afiix our signatures in presence of two witnesses.

CLIFFORD J. CAMPBELL. THOMAS F. HALL.

. Witnesses: I

CHARLES R. SFARLE, GEo. M. MEYERS.

. 4o 8. The system ofstoring and delivering liq- 

